From: Jeff Dike <jdike@addtoit.com>
To: "Toralf Förster" <toralf.foerster@gmx.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
uml-devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: UML kernel failed to start betvee 2.6.8-rc8 and current git sources
Date: Thu, 10 Jul 2008 15:30:19 -0400 [thread overview]
Message-ID: <20080710193019.GA20112@c2.user-mode-linux.org> (raw)
In-Reply-To: <200807102010.02772.toralf.foerster@gmx.de>
On Thu, Jul 10, 2008 at 08:09:59PM +0200, Toralf Förster wrote:
> At Thursday 10 July 2008 18:35:15 Jeff Dike wrote :
>
> > What's the host?
>
> tfoerste@n22 ~ $ uname -a
> Linux n22 2.6.25-gentoo-r6 #4 Thu Jul 10 19:49:36 CEST 2008 i686 Intel(R) Pentium(R) M processor 1700MHz GenuineIntel GNU/Linux
>
> BTW, this works fine and shows only the config :
> n22 ~ # linux-v2.6.26-rc8-227 --showconfig
>
> whereas this failed:
>
> n22 ~ # linux-v2.6.26-rc9-56 --showconfig
> Locating the bottom of the address space ... 0x0
> Locating the top of the address space ... 0xc0000000
OK, I believe you're seeing the same bug as Uli saw here:
http://marc.info/?l=linux-kernel&m=121011518003727&w=2
More precise symptoms are here:
http://marc.info/?l=linux-kernel&m=121011722806093&w=2
I never did figure that one out. I had the same kernel version, same
toolchain, same everything as far as I could see, and I couldn't
reproduce it, except with a binary that he gave me.
You're seeing it on i386, whereas he saw it on x86_64.
The underlying problem is that somehow the UML initcalls aren't being
run, which is why you're seeing all zeros in the register dump.
If you bisect this, I bet you end up at the no-unit-at-a-time patch
that he ended up at. And I have no idea what that has to do with
anything.
Jeff
--
Work email - jdike at linux dot intel dot com
next prev parent reply other threads:[~2008-07-10 19:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-10 14:19 UML kernel failed to start betvee 2.6.8-rc8 and current git sources Toralf Förster
2008-07-10 16:35 ` Jeff Dike
[not found] ` <200807102010.02772.toralf.foerster@gmx.de>
2008-07-10 19:30 ` Jeff Dike [this message]
2008-07-11 8:43 ` Toralf Förster
2008-07-10 16:58 ` [uml-devel] " Jeff Dike
2008-07-10 17:34 ` Toralf Förster
2008-07-10 18:52 ` Jeff Dike
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080710193019.GA20112@c2.user-mode-linux.org \
--to=jdike@addtoit.com \
--cc=linux-kernel@vger.kernel.org \
--cc=toralf.foerster@gmx.de \
--cc=user-mode-linux-devel@lists.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox